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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

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Fig. 6

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Fig. 7

Favre-Leuba 253

Features
manual wind
sweep second

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 3.0mm
F= 1.0mm
T= 1.4mm
17 jewels
f = 18000 A/h
power reserve 48h

Balance staff U3033

Stem W3022

Mainspring / battery
1.55 x 6.5 x 0.065 x 210mm

Hands
1.30 x 0.80 x 0.18mm

Comments about the data

Remarks
balance bridge
straight lever (ligne angulaire)
two barrels coupled in parallel
winding details (Fig.7):
placement of the coupling wheels one over the other to minimize bearing pressure,
barrels without cover but with bushing of full barrel height,
click spring directly at crown wheel
detail modifications during production periode (cf. photos)

family/generations:
sweep second:
250: 10.5'''
251: 11.5'''
252: 10.5''', hidden winding gear
253: 11.5''', hidden winding gear
255: 11.5''', date
257: 11.5''', hidden winding gear, date
259: 11.5''', hidden winding gear, enhanced date
no second:
270: 10.5'''
271: 11.5'''
272: 10.5''', hidden winding gear
273: 11.5''', hidden winding gear
275: 11.5''', date
277: 11.5''', hidden winding gear, date
279: 11.5''', hidden winding gear, enhanced date

Example, year: signature; shock device
1-2) ca. 1965: 1227532, Favre-Leuba, Swiss Made; Favre-Leuba
3-4) ca. 1967: Favre-Leuba, Swiss Made; Kif-Satellor
5-7) ca. 1970: Favre-Leuba, Swiss Made; Incabloc

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft


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